Carbon Nanotubes Synthesis via Arc Discharge with a Yttria Catalyst

In-situ Synthesis of Carbon Nanotubes Filled with Metallic Nanoparticles Using Arc Discharge in Solution

A parametric study on the synthesis of carbon nanotubes through arc-discharge in water.

A parametric study was carried out on a novel carbon nanotube (CNT) synthesis using 'arc-discharge in solution' (ADS). The carbon nanostructure yield as a function of time, the rate of erosion of the anode, and the rate of deposition of carbonaceous materials on the cathode electrode were investigated. Amperage dependent normalized kinetic parameters were evaluated. The production rate of carbo...

Synthesis of carbon nanotubes with and without catalyst particles

The initial development of carbon nanotube synthesis revolved heavily around the use of 3d valence transition metals such as Fe, Ni, and Co. More recently, noble metals (e.g. Au) and poor metals (e.g. In, Pb) have been shown to also yield carbon nanotubes. In addition, various ceramics and semiconductors can serve as catalytic particles suitable for tube formation and in some cases hybrid metal...

High-yield synthesis of single-walled carbon nanotubes by gravity-free arc discharge

Single-walled carbon nanotubes ~SWNTs! have been produced in high yield by the dc arc discharge technique under gravity-free conditions. Gravity-free conditions can reduce the convection flow of the buffer gas during the arc discharge, which results in the increase of high thermostatic volume around the arc flame. The yields of both the total soot and SWNTs in soot are significantly increased. ...

Synthesis of Y-junction Carbon Nanotubes from Graphite Composites by Arc-discharge

Y-junction carbon nanotubes were synthesized by arc discharge method from composite anode made of graphite powder, coal tar and alloy catalysts consisting of Fe, Ni, Co and S element. The synthesis of Y-junction carbon nanotubes was carried out in a mixture gas of 200 Torr Ar and 100 Torr H2. The as-synthesized Y-junction carbon nanotubes were examined by scanning electron microscopy (SEM), tra...